Here is a list of what it does... asking how it has worked for those using it!
Disney Expedition Features
Detailed lists of attractions, characters, shows, shops, dining, and guest services
Offical wait times and FASTPASS® return times for attractions
Character meeting location and times
View upcoming times for parades, and other shows
View restaurant menus with prices
Schedule an alarm reminder so you never miss a show
Search feature allows you to search for that special character, restaurant, shop, etc.
Filter and sort to meet your needs such as height requirements, type of ride, distance from your current location and many more
Easily find the nearest restroom
Locate all guest services such as ATMs or baby centers
View Disney maps
Get walking directions to any activity while in the park
Hotel activities, restaurants, and other amenities
Pin your hotel or your favorite park to the start
screen for easy access
View three months of upcoming park hours
Share details with your friends